对建设关中节水型灌区的思考

从降水资源、地表水资源、地下水资源等方面分析了关中地区水资源的现状。指出了该区域在传统灌溉模式下现存的效率低下等问题。提出了将关中地区建设成节水型灌区的构想和措施。提出要尽快制定节水灌区的建设标准,重视输水过程中的节水和改进灌溉方式,重视生物节水,推广有限灌溉,提高水资源利用率,提高农艺节水,推广地表防止蒸发措施,提高水分利用率,开源节流,扩大非常规水资源利用。这些措施是建设节水型灌区的关键,也是实现水资源可持续发展的基本措施。

Reflections on Construction of Water-saving Irrigation Zone in Guanzhong Area

Conditions of precipitation surface and underground water resources in the Guanzhong area were analyzed.Problems of water resource use such as the low efficiency of traditional irrigation were discussed.A proposition and the measures for construction of a water-saving irrigation zone in the area were presented.It is suggested that construction standards of the water-saving irrigation area must be formulated as soon as possible.A great attention must be paid to saving water in its delivery and improving the ways of irrigation.Also,attentions shouldbe paid to practicing biological saving water,extending the limited irrigation for a sufficient use of water resources,enhancing agronomic measures to save water,extending the soil surface measure to prevent soil water from evaporating,using new water resources and reducing expenses,and expanding the uses of non-convention water resources.These measures are the key to construction of the water-saving irrigation zone,and are the basic measures for sustainable use of water resources in the area.